Global Air Circulation

What is the main cause of air circulation in Earth's atmosphere?

• Earth's gravity

• Ocean currents

• energy from the sun

• Earth's magnetic field

Global Wind Patterns: Unequal heating of Earth's surface by energy from the sun and the rotation of Earth drives global wind patterns.

Choose the correct letter to fill in the blank

The _ the most thermal energy

• poles receive

• equator receives

Global Wind Patterns: Unequal heating of Earth's surface by energy from the sun and the rotation of Earth drives global wind patterns.

Choose the correct letter to fill in the blank

The global movement of wind results from differences of _

• temperature in the ocean

• pressure in the atmosphere

Air rises above the Equator. Because of that the air pressure over the surface is...

• high
• low

Warm air...

• sinks

• rises

Cold air ...

• sinks

• rises

What weather is caused by low pressure?

• Clouds and rain

• Clear skies

True or false - warm air rises, cools and condenses and forms clouds, this is called low pressure

• True

• False

Cool air sinks at the sub-tropical highs, what does this lead to? SELECT TWO

• Deserts

• Cloudless skies and low rainfall

• Tropical rainforests

• Clouds and rainfall

The . . . passes through area central Africa

• Equator

• Tropic of Capricorn

• Greenwich Meridian

• Tropic of Cancer